CN214409120U - Appearance voltage detection circuit and appearance that moults - Google Patents
Appearance voltage detection circuit and appearance that moults Download PDFInfo
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- CN214409120U CN214409120U CN202120134572.4U CN202120134572U CN214409120U CN 214409120 U CN214409120 U CN 214409120U CN 202120134572 U CN202120134572 U CN 202120134572U CN 214409120 U CN214409120 U CN 214409120U
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Abstract
A voltage detection circuit of a depilating instrument and the depilating instrument are provided, the voltage detection circuit of the depilating instrument comprises: the detection module detects the voltage of the energy storage module and transmits a detection voltage signal to the control module, and the control module controls the energy storage module to charge or discharge according to the detection voltage signal. The first power supply module is adopted to supply power for the detection module independently, so that the power supply voltage of the detection module is not influenced by the power supply voltage of the control module, the range of the reference voltage of the detection module is favorably reduced, further, the voltage difference of electrolytic capacitors among different depilating instruments is favorably reduced, and the consistency and the safety of products are improved.
Description
Technical Field
The utility model relates to an appearance technical field that moults especially relates to an appearance voltage detection circuit and appearance that moults.
Background
IPL (Intense Pulsed Light), also called photon unhairing, is a novel unhairing technology and cosmetic method in the market, which utilizes the special wavelength and photo-thermal effect of Intense Pulsed Light to destroy hair follicles and achieve the effect of permanent unhairing, has the advantages of high speed, good effect, high safety, no side effect, no pain and the like, and is widely welcomed in the cosmetic and medical industries.
In the control circuit of the IPL depilation instrument, power pins of an MCU (micro controller Unit) are divided into a digital power supply pin and an analog power supply pin, and a pin for detecting the voltage of an electrolytic capacitor in the depilation instrument is an a/D port, and the power supply thereof is derived from an analog power supply. In the existing depilating instrument control circuit on the market, the power supply voltage of the A/D detection circuit is equal to that of the MCU, and the power supply voltage of the MCU is 3.3V, which can cause the reference voltage range of the A/D detection circuit to be too large, so that the voltage detection precision of the electrolytic capacitor is low, the energy difference is large, and even the depilating cannot be effective or people are injured.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an appearance voltage detection circuit moults can reduce AD detection circuitry's reference voltage range, improves the voltage detection precision to electrolytic capacitor to improve product uniformity and security.
For realizing the purpose of the utility model, the utility model provides a following technical scheme:
in a first aspect, the utility model provides an appearance voltage detection circuit moults, the appearance voltage detection circuit that moults includes: the device comprises a first power supply module, a control module, a detection module and an energy storage module, wherein the first power supply module is electrically connected with the detection module to supply power for the detection module, the control module and the detection module are electrically connected with the energy storage module, the detection module detects the voltage of the energy storage module and transmits a detection voltage signal to the control module, and the control module controls the energy storage module to charge or discharge according to the detection voltage signal.
In one embodiment, the first power supply module includes a reference voltage chip, an input terminal of the reference voltage chip is connected to the power supply, and an output terminal of the reference voltage chip is electrically connected to the detection module.
In one embodiment, the first power supply module further includes a first filter circuit and a second filter circuit, one end of the first filter circuit is connected to the power supply, the other end of the first filter circuit is grounded, one end of the second filter circuit is connected to the output end of the reference voltage chip, and the other end of the second filter circuit is grounded.
In one embodiment, the reference voltage range of the reference voltage chip is 1.8V-5V, and the error range is +/-0.2%.
In one embodiment, the depilator voltage detection circuit further includes a second power supply module electrically connected to the power supply and the control module to supply power to the control module after converting the power supply voltage into the first voltage, and the first power supply module is electrically connected to the second power supply module to supply power to the detection module after converting the first voltage into the second voltage.
In one embodiment, the energy storage module comprises an electrolytic capacitor, the control module is provided with a software reference voltage, and the control module compares the voltage of the electrolytic capacitor detected by the detection module with the software reference voltage and then periodically outputs a first signal or a second signal to the electrolytic capacitor so as to charge or discharge the electrolytic capacitor.
In a second aspect, the present invention further provides a depilating device, the depilating device includes a trigger module, a light source and a depilating device voltage detection circuit as in any one of the embodiments of the first aspect, the trigger module is electrically connected to the control module, so as to output a contact signal to the control module, the light source is electrically connected to the energy storage module, and the energy storage module is right to discharge electricity from the light source, so as to emit light from the light source.
In one embodiment, the depilating apparatus further includes a key module, the key module is electrically connected to the control module, the key module includes a first key and a second key, the first key transmits a power on/off signal to the control module to control whether the depilating apparatus is powered on, and the second key transmits a light emitting signal to the control module to control whether the light source emits light.
In one embodiment, the depilating device further comprises a refrigeration module and a display module, wherein the refrigeration module and the display module are electrically connected with the control module, the refrigeration module is used for cooling and refrigeration, and the display module is used for displaying the working state of the depilating device.
In one embodiment, the epilation apparatus further comprises a third power supply module electrically connected to the power supply and the cooling module, the third power supply module converting the power supply voltage to a third voltage to power the cooling module.
The first power supply module is adopted to supply power for the detection module independently, so that the power supply voltage of the detection module is not influenced by the power supply voltage of the control module, the range of the reference voltage of the detection module is favorably reduced, further, the voltage difference of electrolytic capacitors among different depilating instruments is favorably reduced, and the consistency and the safety of products are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a control circuit of an epilating apparatus according to an embodiment;
FIG. 2 is a schematic structural diagram of a first power supply module according to an embodiment;
fig. 3 is a flowchart illustrating the operation of the hair removal device according to one embodiment.
Description of reference numerals:
10-a first power supply module; 11-a reference voltage chip;
20-a control module;
30-a detection module;
40-an energy storage module;
50-a second power supply module; 51-third Power supply Module
60-a power supply;
70-a trigger module; 71-a sensing unit; 72-an excitation unit;
80-a light source;
91-a key module; 911-first key; 912-a second key;
92-a refrigeration module; 93-display module.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
The utility model provides an appearance voltage detection circuit moults please refer to fig. 1, should moult appearance voltage detection circuit and include: the detection module 30 is electrically connected to the control module 20, and the energy storage module 30, the detection module 30 is electrically connected to the control module 20. The MCU chip is provided with a VDDA interface and an A/D interface, and the detection module 30 is electrically connected with the first power supply module 10 through the VDDA interface to independently supply power to the detection module 30. The detection module 30 is electrically connected to the energy storage module 40 through an a/D interface to perform sampling detection on the voltage of the energy storage module 40. In addition, the control module 20 is electrically connected to the energy storage module 40, the detection module 30 detects a voltage of the energy storage module 40 and transmits a detection voltage signal to the control module 20, and the control module 20 controls the energy storage module 40 to charge or discharge according to the detection voltage signal. Because the IPL lamp tube is adopted in the circuit of the photon depilating instrument to emit strong pulse light to achieve the purpose of depilating, high-voltage direct current is required to pass through the IPL lamp tube for lighting, and the high-voltage direct current is required to be limited within the safe voltage range of 300V-600V for ensuring the safety, wherein the voltage of the IPL lamp tube is provided by the energy storage module 40. When the detection module 30 detects that the voltage of the energy storage module 40 is smaller than the upper limit of the safe voltage range, the control module 20 controls the energy storage module 40 to charge to increase the voltage of the energy storage module, and when the detection module 20 detects that the voltage of the energy storage module 40 reaches the upper limit of the safe voltage range, the control module 20 controls the energy storage module 40 to discharge, so that the voltage of the energy storage module 40 is reduced, and the IPL lamp tube emits light with the pulse intensity within the safe voltage range.
By adopting the first power supply module 10 to supply power to the detection module 30 independently, the range of the reference voltage of the detection module 30 is favorably reduced, so that the voltage detection precision of the detection module 30 to the energy storage module 40 is higher, and the consistency and the safety of the product are improved.
IN one embodiment, referring to fig. 1 and fig. 2, the first power supply module 10 includes a reference voltage chip 11, and an input terminal IN of the reference voltage chip 11 is electrically connected to the power supply 60 to convert a voltage of the power supply 60 into a power supply voltage of the detection module 30. The output end OUT of the reference voltage chip 11 is electrically connected to the detection module 30, and in this embodiment, the reference voltage chip 11 is connected to the VDDA interface of the MCU chip through the output end OUT to supply power to the detection module 30. By arranging the reference voltage chip 11 between the power supply 60 and the detection module 30, the reference voltage chip 11 converts the voltage of the power supply 60 into the power supply voltage of the detection module 30 and then supplies power to the detection module 30, thereby achieving the purpose of improving the sampling precision of the detection module 30.
In one embodiment, the first power supply module 10 further includes a first filter circuit and a second filter circuit, one end of the first filter circuit is electrically connected to the power supply 60, and the other end is grounded; one end of the second filter circuit is connected to the output terminal OUT of the reference voltage chip 11, and the other end is grounded. Specifically, the first filter circuit includes a first filter capacitor C1, and the second filter circuit includes a second filter capacitor C2, in this embodiment, the first filter capacitor C1 is an electrolytic capacitor of 1 μ F, the second filter capacitor C2 is an electrolytic capacitor of 10 μ F, and the first filter capacitor C1 and the second filter capacitor C2 can make the dc output of the first power supply module 10 smooth and stable, reduce the influence of the alternating pulsating current, and simultaneously can absorb the current fluctuation generated in the working process of the circuit and the interference of the series connection via the ac power supply, so that the working performance of the circuit is more stable. In addition, the circuit structure that the first filter capacitor C1 and the second filter capacitor C2 are combined in parallel is beneficial to further improving the filtering effect. Through set up first filter circuit and second filter circuit in first power module 10, be favorable to filtering high frequency interference signal and low frequency interference signal, be favorable to reducing the output voltage error of first power module 10, promote detection module 30's precision.
In an embodiment, referring to fig. 2, the reference voltage range of the reference voltage chip 11 is 1.8V to 5V, and the error range is ± 0.2%, wherein the specific magnitude of the reference voltage chip 11 can be adjusted according to the power supply voltage of the detection module 30. The reference voltage of the reference voltage chip 11 is set corresponding to the power supply voltage of the detection module 30, the error range is reduced to +/-0.2%, the sampling precision of the detection module 30 is improved, the voltage detection error range of the detection module 30 to the energy storage module 40 is smaller, and the voltage error of the energy storage module 40 is favorably reduced.
In one embodiment, referring to fig. 1, the voltage detection circuit of the hair removal device further includes a second power module 50, wherein the second power module 50 is electrically connected to the power source 60 and the control module 20 to convert the voltage of the power source 60 into a first voltage and then supply the first voltage to the control module 20, and the first voltage is a working voltage of the control module 20. The first power supply module 10 is electrically connected to the second power supply module 50 to convert the first voltage into a second voltage and then supply power to the detection module 30, where the second voltage is a power supply voltage of the detection module 30, in this embodiment, the working voltage of the control module 20 is 3.3V, and the power supply voltage of the detection module 30 is 3V. By providing the second power supply module 50 electrically connected to the control module 20 to convert the voltage of the power supply 60 into the first voltage, the power supply function of the control module 20 is achieved, and meanwhile, the input voltage is provided for the first power supply module 10, so that the first power supply module 10 outputs the second voltage with a corresponding magnitude to power the detection module 30.
Specifically, referring to fig. 3, the second power supply module 50 includes a power adapter, which is also called an external power supply, and an LDO (low dropout regulator), which is commonly used in small electronic devices such as mobile phones, liquid crystal displays, and notebook computers, and includes a power transformer and a rectifying circuit, when the electronic devices cannot directly use household power, the power adapter transforms the household 220V ac power, and the dc power is rectified by the rectifier to be a dc power, and then the dc power is converted into a voltage or a current suitable for the electronic devices. Since the power supply 60 is mains electricity, the depilation instrument is one of small electronic devices, and is not suitable for a household 220V ac power supply. When the epilator needs to be powered on, the 220V domestic supply voltage is first converted by the power adapter to a voltage in the voltage range of 12V-24V. The LDO is connected to a power adapter, and is a linear regulator that subtracts excess voltage from an input voltage in the applied 12V-24V voltage range by using a transistor or fet operating in its saturation region to produce a regulated 3.3V output voltage to provide a voltage input to first power module 10 and control module 20.
In one embodiment, the energy storage module 40 includes an electrolytic capacitor, the control module 20 is provided with a software reference voltage, and the control module 20 compares the voltage of the electrolytic capacitor detected by the detection module 30 with the software reference voltage and then periodically outputs a first signal or a second signal to the electrolytic capacitor to charge or discharge the electrolytic capacitor. Specifically, in the use process of the depilating apparatus, the user can set the depilating apparatus at different gears according to the requirement to realize different cosmetic effects. The voltage of the electrolytic capacitor corresponding to different gears is different, the software reference voltage can be preset through internal software, a comparison circuit is arranged in the MCU chip and compares the detected voltage signal with the software reference voltage, when the voltage of the electrolytic capacitor is lower than the software reference voltage, the control module 20 outputs a first signal to charge the electrolytic capacitor, the voltage of the electrolytic capacitor rises in the charging process, until the detection module 30 detects that the voltage of the electrolytic capacitor reaches the software reference voltage, the control module 20 outputs a second signal to discharge the electrolytic capacitor, and the voltage of the electrolytic capacitor continuously drops in the discharging process, when the detection module 30 detects that the voltage of the electrolytic capacitor is lower than the software reference voltage again, the control module 20 outputs the first signal again to charge the electrolytic capacitor, this is repeated periodically so that the voltage of the energy storage module 40 is always kept within the safe voltage range. The voltage of the energy storage module 40 is sampled and detected by the detection module 30, the circuit structure of the charging or discharging state of the energy storage module 40 is controlled in real time according to the comparison result of the detection voltage and the software reference voltage, the voltage of the energy storage module 40 can be always maintained within the safe voltage range by improving the detection precision of the detection module 30, and the safety of the circuit is improved.
The utility model also provides a depilating instrument, this depilating instrument can be for portable depilating instrument, also can be used for the beauty treatment equipment that moults and improve skin defect for cosmetic mechanism, still can be used for treating skin disease's medical device etc. for the medical industry. Referring to fig. 3, the epilating apparatus includes the epilating apparatus voltage detection circuit, the triggering module 70 and the light source 80 of any of the above embodiments, the triggering module 70 is electrically connected to the control module 20 to output a contact signal to the control module 20, the light source 80 is electrically connected to the energy storage module 40, and the energy storage module 40 discharges the light source 80 to make the light source 80 emit light. Specifically, the triggering module 70 includes a sensing unit 71 and an exciting unit 72, the sensing unit 71 is electrically connected to the control module 20, and the exciting unit 72 is electrically connected to both the control module 20 and the energy storage module 40. The sensing unit 71 is typically a touch chip for detecting whether the epilator is in contact with the skin and transmitting a contact signal to the control module 20, when the epilator is in contact with the skin, the sensing unit 71 outputs the contact signal to the control module 20, and when the epilator is separated from the skin, the sensing unit 71 stops outputting the contact signal to the control module 20. When the control module 20 receives the contact signal, the trigger signal is transmitted to the excitation unit 72, the excitation unit 72 includes a trigger circuit, the trigger circuit receives the trigger signal and then communicates the energy storage module 40 and the light source 80, and the light source 80 emits light under the excitation of the high voltage of the energy storage module 40 to depilate the skin.
Through adopting in the appearance that moults the utility model provides an appearance voltage detection circuit that moults because this voltage detection circuit's detection precision is higher, is favorable to reducing the difference in voltage of electrolytic capacitor between the appearance that moults, improves product uniformity and security.
In one embodiment, referring to fig. 1 and fig. 3, the depilating apparatus further includes a key module 91, the key module 91 is electrically connected to the control module 20, and the key module 91 includes a first key 911 and a second key 912, the first key 911 transmits a power on/off signal to the control module 20 to control whether the depilating apparatus is powered on, and the second key 912 transmits a light emitting signal to the control module 20 to control whether the light source 80 emits light. Specifically, when the user needs to use the hair removal device to remove hair, the first button 911 is pressed, and the control module 20 receives the power-on signal and controls the hair removal device to turn on the power supply 60 to start operating. When the sensing unit 71 senses that the depilating apparatus is in contact with the skin, the second button 912 is pressed, and the control module 20 controls the light source 80 to illuminate. Specifically, when the second button 912 is pressed for a short time, the light source 80 turns on the single lighting mode, and when the second button 912 is pressed for a long time, the light source 80 turns on the continuous flashing mode. When the user finishes using the depilating apparatus, the control module 20 receives the power-off signal and controls the depilating apparatus to turn off the power supply 60, and the depilating apparatus stops working. Through setting up button module 91 can make the appearance that moults freely switch between on & off state and different modes of polishing, made things convenient for the control of user to the appearance that moults, also reduced simultaneously because the potential safety hazard that children maloperation etc. brought.
In one embodiment, referring to fig. 1, the depilating apparatus further includes a cooling module 92 and a display module 93, both the cooling module 92 and the display module 93 are electrically connected to the control module 20, the cooling module 92 is used for cooling and cooling, and the display module 93 is used for displaying the working state of the depilating apparatus. In this embodiment, the cooling module 92 is a TEC (semiconductor cooler), and when the epilating apparatus is powered on by the power supply 60, the control module 20 outputs a cooling signal to the TEC semiconductor cooler, and the TEC semiconductor cooler starts a cooling function. The refrigeration module 92 can realize the effect of rapid refrigeration by using the characteristic of very small thermal inertia of the TEC to refrigerate by using the TEC semiconductor refrigerator. By providing the cooling module 92, the heat of the light source 80 can be reduced and the skin can be temporarily paralyzed to reduce the tingling sensation during depilation.
The display module 93 includes an LED indicator, and when the light source 80 is in the single lighting mode or the continuous flashing mode, and the energy storage module 40 is in the charging state or the discharging state, the control module 20 sends different control signals to the display module 93, and drives the LED indicator to display different prompt messages. It can be understood that the prompting method can be freely set according to the needs, for example, the number of the LED lamp tubes is set to be multiple, and the number of different LED lamps represents different working states; different prompting messages can also be represented by changing the color of the LED lamp. Through setting up display module 93, the user can know the operating condition of the appearance that moults at any time to combine the demand of oneself to operate it, promote user experience.
In one embodiment, referring to fig. 1, the epilating apparatus further includes a third power module 51, the third power module 51 is electrically connected to the power source 60 and the cooling module 92, and the third power module converts the power voltage into a third voltage to supply power to the cooling module 92. The third power supply module 51 employs a DC-DC converter, which is a device for converting electric energy of one voltage value into electric energy of another voltage value in a direct current circuit, and is constructed by assembling a small surface-mount integrated circuit and a micro electronic component into one body using a microelectronic technology. In this embodiment, the power adapter converts the voltage of the power supply 60 into a 12V DC voltage and then connects to the DC-DC converter, and the DC-DC converter converts the 12V DC voltage into a working voltage of the refrigeration module 92, that is, a third voltage of 3.9V, to supply power to the refrigeration module 92. It is understood that in other embodiments, the power adapter may also convert the voltage of the power supply 60 to other magnitudes of dc voltage within the 12V-24V voltage range. The third power module 51 is provided between the power source 60 and the cooling module 92 to supply power to the cooling module 92, and the power circuit design can be simplified by using a DC-DC converter.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. A depilator voltage detection circuit, the depilator voltage detection circuit comprising: the device comprises a first power supply module, a control module, a detection module and an energy storage module, wherein the first power supply module is electrically connected with the detection module to supply power for the detection module, the control module and the detection module are electrically connected with the energy storage module, the detection module detects the voltage of the energy storage module and transmits a detection voltage signal to the control module, and the control module controls the energy storage module to charge or discharge according to the detection voltage signal.
2. A depilatory instrument voltage detection circuit according to claim 1 wherein the first power supply module comprises a reference voltage chip having an input connected to a power supply and an output electrically connected to the detection module.
3. A depilatory instrument voltage detection circuit according to claim 2 wherein the first power supply module further comprises a first filter circuit connected at one end to a power supply and at the other end to ground and a second filter circuit connected at one end to the output of the reference voltage chip and at the other end to ground.
4. A depilatory apparatus voltage detection circuit according to claim 3 wherein the reference voltage of the reference voltage chip is in the range 1.8V to 5V with a tolerance of ± 0.2%.
5. An epilator voltage detection circuit as claimed in claim 1, characterized in that the epilator voltage detection circuit further comprises a second power supply module electrically connected to the power supply and the control module for converting a supply voltage into a first voltage for powering the control module, and the first power supply module is electrically connected to the second power supply module for converting the first voltage into a second voltage for powering the detection module.
6. An epilator voltage detection circuit as claimed in claim 1, wherein the energy storage module comprises an electrolytic capacitor, the control module is provided with a software reference voltage, and the control module compares the voltage of the electrolytic capacitor detected by the detection module with the software reference voltage and then periodically outputs a first signal or a second signal to the electrolytic capacitor to charge or discharge the electrolytic capacitor.
7. An epilating apparatus comprising an epilating apparatus voltage detection circuit as claimed in any one of claims 1 to 6, a triggering module electrically connected to the control module for outputting a contact signal to the control module, a light source electrically connected to the energy storage module, and the energy storage module discharging the light source to emit light.
8. The hair removal device of claim 7, further comprising a button module electrically connected to the control module, wherein the button module comprises a first button and a second button, the first button transmits a power on/off signal to the control module to control whether the hair removal device is powered on, and the second button transmits a light emitting signal to the control module to control whether the light source emits light.
9. The hair removal device of claim 7, further comprising a cooling module and a display module, wherein the cooling module and the display module are electrically connected to the control module, the cooling module is used for cooling and cooling, and the display module is used for displaying the operating status of the hair removal device.
10. An epilating apparatus as claimed in claim 9, further comprising a third power supply module electrically connected to a power supply and the cooling module, the third power supply module converting the supply voltage to a third voltage to power the cooling module.
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| CN202120134572.4U CN214409120U (en) | 2021-01-18 | 2021-01-18 | Appearance voltage detection circuit and appearance that moults |
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| CN202120134572.4U CN214409120U (en) | 2021-01-18 | 2021-01-18 | Appearance voltage detection circuit and appearance that moults |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116492043A (en) * | 2022-10-18 | 2023-07-28 | 广州星际悦动股份有限公司 | Pulse light control method, circuit, device, dehairing instrument and storage medium |
| CN116492043B (en) * | 2022-10-18 | 2024-05-24 | 广州星际悦动股份有限公司 | Pulse light control method, circuit, device, dehairing instrument and storage medium |
-
2021
- 2021-01-18 CN CN202120134572.4U patent/CN214409120U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116492043A (en) * | 2022-10-18 | 2023-07-28 | 广州星际悦动股份有限公司 | Pulse light control method, circuit, device, dehairing instrument and storage medium |
| CN116492043B (en) * | 2022-10-18 | 2024-05-24 | 广州星际悦动股份有限公司 | Pulse light control method, circuit, device, dehairing instrument and storage medium |
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